Well seeing as how this would supplement my 15" Macbook Pro i7 2.66 laptop, it will be perfect for me. I just don't need the horsepower of the i7 to browse RWG while I'm watching TV
Plus ALL of the Macbook Pro's and Macbooks get too damn hot sitting on my lap. Even my friends 13" MB Pro with SSD drive. It still runs hot. The Air is very cool running and that, to me, is one of it's biggest appeals.
As for the hackintosh's, I am sure they are great. A co-worker built one out of an MSI Wind, and it was pretty cool I guess. It wasn't as light as the Air, and it was considerably thicker. It just didn't feel that much smaller than my 13" Black Macbook. Also, it didn't boot up in 10 seconds
I guess to each their own